Gas-burner.



W. M. .BACHELDER @E M. D. AVERY.

WILLIAM M. BAOHELDER, or MAUMnn-AND MEREDITH D. AVERY, OF TOLEDO, OHIO.-

GAS-BURNER.

To all whom 'it may concern:

Be it known that We, WILLIAM M. BACH- ELDER and .MEREDITH D. AVERY, citizens of the lUnited States, and residents, respectively, of Maumee and Toledo, in the county ofLucas and State of Ohio, have invented a certain new and useful Gas-Burner; and we do hereby declare the following to be a full, clear, and exact description o'f the invention,

such as-will enable others skilled in the art to furnaces or stoves, though useful in other rej j described in the following specification illustrated in the accompanying drawings, in

lations and particularly to burners of the class combining a gas-heating or generatingchamber in their construction.

The object of our invention is the provision of a simple, cheap and highly efl'icient burner of this class, which is designed more .especially for gas, thoughphydrocarbon oils may be used, and which is so constructed and has its gas-heating or generating-chamber so disposed relative to the zone in which the combustion takes place that the flames impinge thereon in such a manner as to cause' it lto become very highly heated, whereby to expand the gas passing therethrough to its fullest extent to facilitate thoroughand coniplete combustion. 4

The-operation, construction and arrang mentl of the parts of the invention are fu ly and which,-.y

Figure 1 is a central vertical section of the burner comprising our invention, and Fig. 2 a bottom plan view thereof. V

Referringto the drawings, 3 designates the mixing-chamber of the burner, whichchamber has a dome-shaped roof 4 and is formed on its bottoni with a downwardly projecting tubular chimney-part 5r throughA which the air and gas pass to enter the' mixing-chainber. Tapped centrally into thc top of the mixing-chamber is a hollowcd plug 6, which projects a short distance above such chaml i r ber to form a turret and is provided in its side Wall with an annular series of Jet orifices 7, asshown. A similaiseries of orifices 8 are arranged in. thc .sido wall 9 of the mixing-- Chamb er.

Specification of Letters Patent.-

Patent'ed Aug. 1o, V1909.

Application filed October 11,'1907'. Serial No, 396,974. i

Surrounding the dome 4 intermediate the turret 6 and wall 9 of the mixing-chamber .isv

an annular conduit 11 which isformed by the spaced annular flanges 12 and 13 projecting radiallyfro'm the dome or upper portion of the mixing-chamber and connecting in a preferably rounded curve at their outer edges. The lower flange 12 projects from the mixing-chamber above the row of orifices 8 atsubstantiallythe base of the dome 4, thus enabling the jets of burning gas discharged from such orifices to impinge directly against the bottom of the conduit 11 and hug the curved outer side of the conduit in its ascent whereby to highly heat the same. The flange 13 preferably projects in a slight upward incline from the dome` 4t adjacent to the base of the turret so that its outer portion stands substantially in a plane with the top of the plug 6, as shown, thus causing the ljets of aniewliich are emitted from the orifices 7, to strike against the inclined surface of the conduit top and be directed upwardly thereby. As will be seen the top of the conduit 11 presents a broader impinging surface to its flame jets than does the bottom to its flame Jets.

It will be noted that the forming of the flanges 12 and 13 in spaced relation onthe dome 4 of the mixing-chamber, as shown, not only positions the inner ends of such flanges near the upper and lower orifices 8 and 7, respectively, thus increasing the heating surface of the generating-chamber, but also provides a single dividing wall between the mixing and generating chambers, thereby adding materially to the efficiency of the burner. It is found in practice with this construction of burner that the intense heat of the generating-chamber 11 is rapidly communicated to the wall 4 of the mixing-chamber and that the entire burner is therebyinaintained at a red heat, thus causing the mixed air and gas to be expanded and heated to a very high state Within the mixing or super-heatingchamber 3, whereby complete combustion is accomplished and the flames from the discharge orifices are of a light blue nature. The gas or other fuel is admitted to the heating conduit 11 through the supply-pipe 14, and after passing through the conduit is ermittcd to )ass therefrom through the outet pipe'15, t ie upperendl of which is tapped into the bottom ofthe conduit. This pipe extends downward and has its lower end portion curved to bring its free end upward vertically and centrally below the open lower end of the chimneyart 5. The free end of the pipe 15 is provi ed with a centrally perforated cap or plug 16 through which the gas orgaseous vapor is ejected upward through vthe chimney-part 5 into the mixing-chamber 3l Thefuel supply being turned on and the jets ejected from the oriiices 7 and 8 lighted, the lower land upper walls 12 and 13 of the conduit 1 are heated to a very high stateI by the impinging thereon of the flame jets, the

lower of which pass upward around the outer edge of the conduit hugging the outer side thereof and meet with the upper jets above the burner at the ed e thereof, thereby heating and expanding t e gas in the conduit to the fullest extent before it is discharged from the outlet pipe 15 and commingled with the.

shown and described, as obvious modiications will occur to persons skilled 1n the art.

Having thus described' our invention, what i we claim as new and desire to'secure by Letters Patent, 1s,-

A burner comprising a mixing-chamber having a dome-shaped roof' portion provided at its central top portion with a turret, said lchamber being priwided in its side and turret with rows of orifices, a flange )rojccting from the mixing-chamber above t e lower row of ori'lices and. substantially at the base of the roof portion, a iiange projecting from the roof portion adjacent to the base of the turl ret and having a greater flame ilnpinging surface than the lower iange, said two flanges being connected at their outer edges to form a closed conduit around the mixing-chamber dome, which conduit is separated from the interior of the mixing-chamber by a single wall, a supply-pipe tapped into the conduit, and an outlet pipe leading therefrom and having its discharge into the bottom of the mixing chamber, substantially as described. In testimony whereof we have hereunto signed our names to this specification in the presence of two subscribin ir witnesses.

WILLIAM M. SACHELDER. MEREDITH D. AVERY. W'itnesses:

CORNELL SCHREIBER, CilAs. W. OWEN.

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